Journal Article magnetic tunnel junctions Research Support, Non-U.S. Gov't TMR angular dependence coherent and incoherent spin currents competing anisotropies dipole interactions electric-field control of magnetism exchange bias ferroelectric materials field-free switching handedness insulating compensated ferrimagnets magnetic damping magnetic random-access memory magnetization reversal magnetoelectric devices multiferroic multiferroic heterostructures nonvolatile voltage control of magnetism spin pumping spin-orbit torque spintronics strain-mediated magnetoelectric coupling straintronics topological insulators